Hi im hoping one of you guys can tell me what heads i got. Heres the numbers i pulled off them, hope one of them are the right numbers

6272292
12471
gm121
ANY info the the heads would be appreciated, CC? anything at all. I dont know much about heads. so any info would be great.
thanks

Here you go, you can search yourself: http://www.mortec.com/

thanks, wondered where you guys looked that stuff up. this will be a big help